import React, { Component } from 'react';
import { Chart, Axis, Tooltip, Geom } from 'bizcharts';
import Debounce from 'lodash-decorators/debounce';
import Bind from 'lodash-decorators/bind';
import autoHeight from '../autoHeight';
import styles from '../index.less';

@autoHeight()
class Bar extends Component {
  state = {
      autoHideXLabels: false,
  };

  componentDidMount() {
      window.addEventListener('resize', this.resize);
  }

  componentWillUnmount() {
      window.removeEventListener('resize', this.resize);
  }

  @Bind()
  @Debounce(400)
  resize() {
      if (!this.node) {
          return;
      }
      const canvasWidth = this.node.parentNode.clientWidth;
      const { data = [], autoLabel = true } = this.props;
      if (!autoLabel) {
          return;
      }
      const minWidth = data.length * 30;
      const { autoHideXLabels } = this.state;

      if (canvasWidth <= minWidth) {
          if (!autoHideXLabels) {
              this.setState({
                  autoHideXLabels: true,
              });
          }
      } else if (autoHideXLabels) {
          this.setState({
              autoHideXLabels: false,
          });
      }
  }

  handleRoot = (n) => {
      this.root = n;
  };

  handleRef = (n) => {
      this.node = n;
  };

  render() {
      const {
          height,
          title,
          forceFit = true,
          data,
          color = 'rgba(24, 144, 255, 0.85)',
          padding,
      } = this.props;

      const { autoHideXLabels } = this.state;

      const scale = {
          x: {
              type: 'cat',
          },
          y: {
              min: 0,
          },
      };

      const tooltip = [
          'x*y',
          (x, y) => ({
              name: x,
              value: y,
          }),
      ];

      return (
          <div className={styles.chart} style={{ height }} ref={this.handleRoot}>
              <div ref={this.handleRef}>
                  {title && <h4 style={{ marginBottom: 20 }}>{title}</h4>}
                  <Chart
                      scale={scale}
                      height={title ? height - 41 : height}
                      forceFit={forceFit}
                      data={data}
                      padding={padding || 'auto'}
                  >
                      <Axis
                          name="x"
                          title={false}
                          label={autoHideXLabels ? false : {}}
                          tickLine={autoHideXLabels ? false : {}}
                      />
                      <Axis name="y" min={0} />
                      <Tooltip showTitle={false} crosshairs={false} />
                      <Geom type="interval" position="x*y" color={color} tooltip={tooltip} />
                  </Chart>
              </div>
          </div>
      );
  }
}

export default Bar;
